APA Style
Penna, Richard P. (1979).
Handbook of Nonprescription Drugs (6th.ed).
Washington:
American Pharmaceutical Association.
Chicago Style
Penna, Richard P.
Handbook of Nonprescription Drugs.
6th.ed
Washington:
American Pharmaceutical Association,
1979.
Textbook.
MLA Style
Penna, Richard P.
Handbook of Nonprescription Drugs.
6th.ed
Washington:
American Pharmaceutical Association,
1979.
Textbook.
Turabian Style
Penna, Richard P.
Handbook of Nonprescription Drugs.
6th.ed
Washington:
American Pharmaceutical Association,
1979.
Textbook.